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[JSP/Java] antigmailjava

Description: 实现一个类，描述二维平面的直线Line。 描述属性：私有属性  直线所通过的点：Point p；  直线的斜率：double m 实现方法：  直线的构建；  返回直线的两个属性；  返回直线在Y轴上的截距：yIntercept ；  判断两条直线是否相等；  显示直线的内容：y = mx + b  isParallelTo(Line line2)，判断本直线与直线line2是否平行；  isPeroendicularTo(Line line2)，判断本直线与直线line2是否垂直；  translate(double dx, double dy)，将直线向右移动dx单位，向上移动dy单位；  rarate(double ta)，将直线沿逆时针方向旋转ta度 -achieve a category describing planar linear Line. Property Description : Private Properties
Platform: | Size: 1352 | Author: 王海涛 | Hits:

[Graph program] DelphiX1.0.8.3

Description:

(un)DelphiX installation program (beta version)
Installation program (un)DelphiX 1.0.8.3 release Oct 28, 2008
Full source code with basic demos. This section will be preferred.
Installation brings sources to destination directory and following start selected compiler install into IDE Delphi package with IDE settings.

  • Supported Delphi version 4 , 5 , 6 , 7 , 2005 , 2006 , 2007 and 2009 .

Platform: | Size: 1321230 | Author: dgmryang | Hits:

[DirextX] BspLoader_dx

Description: DX版本的BSP loader!!! DX版本的BSP loader-DX version of the BSP loader! ! ! DX version of the BSP loader!
Platform: | Size: 1227776 | Author: | Hits:

[JSP/Java] antigmailjava

Description: 实现一个类，描述二维平面的直线Line。 描述属性：私有属性  直线所通过的点：Point p；  直线的斜率：double m 实现方法：  直线的构建；  返回直线的两个属性；  返回直线在Y轴上的截距：yIntercept ；  判断两条直线是否相等；  显示直线的内容：y = mx + b  isParallelTo(Line line2)，判断本直线与直线line2是否平行；  isPeroendicularTo(Line line2)，判断本直线与直线line2是否垂直；  translate(double dx, double dy)，将直线向右移动dx单位，向上移动dy单位；  rarate(double ta)，将直线沿逆时针方向旋转ta度 -achieve a category describing planar linear Line. Property Description : Private Properties
Platform: | Size: 1024 | Author: 王海涛 | Hits:

[VC/MFC] df

Description: 【欧拉算法】 微分方程的本质特征是方程中含有导数项,数值解法的第一步就是...欧拉(Euler)算法是数值求解中最基本、最简单的方法,但其求解精度较低,一般不在...对于常微分方程: dy/dx=f(x,y),x∈[a,b] y(a)=y0 可以将区-] [Euler algorithm is the essential feature of differential equations containing derivatives, the numerical solution is the first step ... Euler (Euler) algorithm is the numerical solution of the most basic, the simplest way, but its accuracy to solve more low, generally not ... for the ordinary differential equation: dy/dx = f (x, y), x ∈ [a, b] y (a) = y0 can be areas
Platform: | Size: 74752 | Author: lin | Hits:

[Data structs] duct4

Description: duct.f computes a fully developed viscous laminar flow in a rectangular channel of aspect ratio b/a (=bar). solve the equation: d^2u/dx^2 + d^2u/dy^2 = -1, -a<x<a, -b<y<b method of discretisation: 3-point centered differences method of linear system solution: gauss-seidel + sor -duct.f computes a fully developed viscous laminar flow in a rectangular channel of aspect ratio b/a (=bar). solve the equation: d^2u/dx^2+ d^2u/dy^2 =-1,-a<x<a,-b<y<b method of discretisation: 3-point centered differences method of linear system solution: gauss-seidel+ sor
Platform: | Size: 2048 | Author: Barboy | Hits:

[Software Engineering] C_programs

Description: 定积分的求法:求f(x)dx在[a,b]上的积分，一般求f(x)的原函数F(x),(设；f(x)=F (x) ) F(b)-F(a)就是所求函数f(x)在[a,b]上的积分． -integerated
Platform: | Size: 4804608 | Author: 叶有 | Hits:

[2D Graphic] EllipseFitByTaubin

Description: This is a fast non-iterative ellipse fit, and among fast non-iterative ellipse fits this is the most accurate and robust. It takes the xy-coordinates of data points, and returns the coefficients of the equation of the ellipse: ax^2 + bxy + cy^2 + dx + ey + f = 0, i.e. it returns the vector A=(a,b,c,d,e,f). To convert this vector to the geometric parameters -This is a fast non-iterative ellipse fit, and among fast non-iterative ellipse fits this is the most accurate and robust. It takes the xy-coordinates of data points, and returns the coefficients of the equation of the ellipse: ax^2+ bxy+ cy^2+ dx+ ey+ f = 0, i.e. it returns the vector A=(a,b,c,d,e,f). To convert this vector to the geometric parameters
Platform: | Size: 2048 | Author: ragada | Hits:

[DirextX] compileWithDX9

Description: 1. 1.a make sure that the platform sdk is in first in Options Library directories. 1.b make sure that the dx library is last in order in Options Library directories. 1.c In the Project Properties->Configuration Properties->Linker->Input->Additional Dependencies : add "atls.lib" 2. d3drm in the link/input is replaced with d3d9.lib to avoid d3drm.lib not found error 3. D3D.obj : error LNK2019: unresolved external symbol _Direct3DRMCreate@4 referenced in function "unsigned int __cdecl D3DDriver(void *)" (?D3DDriver@@YAIPAX@Z) ====> Direct3DRMCreate is replaced by Direct3DCreate9. Direct3DRm is completely gone 4. CVTRES : fatal error CVT1100: duplicate resource. type:MANIFEST, name:1, language:0x0409 ====> Commenting the line 1 RT_MANIFEST "res\\TestApp.manifest" in *.rc -1. 1.a make sure that the platform sdk is in first in Options Library directories. 1.b make sure that the dx library is last in order in Options Library directories. 1.c In the Project Properties->Configuration Properties->Linker->Input->Additional Dependencies : add "atls.lib" 2. d3drm in the link/input is replaced with d3d9.lib to avoid d3drm.lib not found error 3. D3D.obj : error LNK2019: unresolved external symbol _Direct3DRMCreate@4 referenced in function "unsigned int __cdecl D3DDriver(void *)" (?D3DDriver@@YAIPAX@Z) ====> Direct3DRMCreate is replaced by Direct3DCreate9. Direct3DRm is completely gone 4. CVTRES : fatal error CVT1100: duplicate resource. type:MANIFEST, name:1, language:0x0409 ====> Commenting the line 1 RT_MANIFEST "res\\TestApp.manifest" in *.rc
Platform: | Size: 1024 | Author: versille | Hits:

[Algorithm] femod1

Description: FEMOD1 is an interactive program for the setup, solution, and printout of a two point boundary value problem in a one dimensional region. The finite element method is used. The differential equation has the form: -d/dX ( K(X) dU/dX ) + C(X) * dU/dX + B(X) * U = F(X) + P(X) Here, P(X) stands for a point load function. The boundary conditions at the end points may have one of the following forms: U(X0) = value1 K(X0) * dU/dX(X0) = value1 * U(X0) + value2. -FEMOD1 is an interactive program for the setup, solution, and printout of a two point boundary value problem in a one dimensional region. The finite element method is used. The differential equation has the form: -d/dX ( K(X) dU/dX )+ C(X)* dU/dX+ B(X)* U = F(X)+ P(X) Here, P(X) stands for a point load function. The boundary conditions at the end points may have one of the following forms: U(X0) = value1 K(X0)* dU/dX(X0) = value1* U(X0)+ value2.
Platform: | Size: 40960 | Author: zhang xiaoping | Hits:

[CSharp] BHcircle

Description: 数值微分(DDA)法： 设过端点P0(x0 ,y0)、P1(x1 ,y1)的直线段为L(P0 ,P1)，则直线段L的斜率 L的起点P0的横坐标x0向L的终点P1的横坐标x1步进，取步长=1(个象素)，用L的直线方程y=kx+b计算相应的y坐标，并取象素点(x,round(y))作为当前点的坐标。因为： yi+1 = kxi+1+b = k1xi+b+kDx = yi+kDx 所以，当Dx =1 yi+1 = yi+k。也就是说，当x每递增1，y递增k(即直线斜率)。根据这个原理，我们可以写出DDA画线算法程序。 2中点画线法 -Numerical differentiation (DDA) method: set off endpoints P0 (x0, y0), P1 (x1, y1) of the straight line for the L (P0, P1), the slope of the line segment L L abscissa x0 the starting point P0 to the L abscissa of the end of P1 x1 step, take steps = 1 (pixels), with L the linear equation y = kx+ b calculates the corresponding y coordinates, and take the pixel (x, round (y)) as the current point coordinates. As: yi+1 = kxi+1+ b = k1xi+ b+ kDx = yi+ kDx So, when Dx = 1 yi+1 = yi+ k. That is, when each increment x 1, y increases k (ie slope of the line.) According to this principle, we can write the DDA line drawing algorithm program. 2, dotted line method
Platform: | Size: 1024 | Author: 李丽 | Hits:

[Mathimatics-Numerical algorithms] jifen

Description: 用它分别求以下5个函数的定积分： ∫ab (1+x)dx , ∫ab (2x+3)dx , ∫ab (ex+1)dx , ∫ab (1+x)2dx , ∫ab x3dx 。其中，a,b为积分上下限，数值待定。-Use it to find the following five functions, respectively, the definite integral: ∫ ab (1+ x) dx, ∫ ab (2x+3) dx, ∫ ab (ex+1) dx, ∫ ab (1+ x) 2dx, ∫ ab x3dx. One, a, b for the limits of integration, the value to be determined.
Platform: | Size: 4096 | Author: john lester | Hits:

[Algorithm] _fsimpfun@20_RK4fun@28

Description: 在vb/vc中调用mathlualib.dll中的自定义API计算一些泛函的值，如计算定积分∫[a->b]f(x)dx，计算数项级数∑[n=1->100]f(n)≈∑[n=1->+∞]f(n)，计算函数项级数∑[n=1->100]f(n,x)≈∑[n=1->+∞]f(n,x)，计算一阶ODEy =fsxy(x,y),y(x_0)=y_0中的y(x),……泛函的自变量在Lua文件里面输入。注意：请不要改变Lua中的函数名fun(x)，fan(n)，fsx(x)，fanx(n,x)，fsxy(x,y)，这几个泛函自变量的函数名和原型在mathlualib.dll中的自定义API中要经常用到。-In vb/vc call mathlualib.dll calculate some functional value, such as calculating the definite integral ∫ [a-> b] f (x) dx, calculate a number of series Σ [n = 1-> 100] f (n ) ≈ Σ [n = 1-> + ∞] f (n), calculate the function key series Σ [n = 1-> 100] f (n, x) ≈ Σ [n = 1-> + ∞] f ( n, x), calculate the first order ODEy = fsxy (x, y), y (x_0) = y_0 of y (x), ... ... functional of the independent variables entered in the Lua files inside. Note: Please do not change the function name in Lua fun (x), fan (n), fsx (x), fanx (n, x), fsxy (x, y), these functional prototype of the independent variables in mathlualib . dll in custom API to be frequently used.
Platform: | Size: 182272 | Author: hanxiaohua | Hits:

[matlab] bcross

Description: 将断层剖面划分为一组网格，并以固定的事件数或固定的扫描半径，计算每个网格点处的b值。然后用色彩表示断层面上b值的分布情况，从而反应断层的应力积累情况，便于地震学家分析该断层是否存在发震的可能-This subroutine creates a grid with spacing dx,dy (in degreees). The size will be selected interactively or grids the entire cross section. The b-value in each volume is computed around a grid point containing ni earthquakes or in between a certain radius. The standard deviation is calcualted either with the max. likelihood or by bootstrapping, when that box is checked. If not, both options can be assigned by the additional run assignment. Standard deviation of b-value in non-bootstrapping case is calculated from Aki-formula!
Platform: | Size: 4096 | Author: 柳青 | Hits:

[assembly language] masm

Description: win32 汇编语言 播放歌曲的小程序 完整 STACK SEGMENT DB 200 DUP ( STACK ) STACK ENDS CODE SEGMENT ASSUME DS:DATA,SS:STACK,CS:CODE START: MOV AX,DATA MOV DS,AX MOV aH, 0 MOV AL,00 INT 10H ********** 定义一个宏显示 waitf proc near push ax waitf1: in al,61h and al,10h cmp al,ah je waitf1 mov ah,al loop waitf1 pop ax ret waitf endp ********************************************* 音乐播放 DISPLAY MACRO b LEA DX,b MOV AH,9 INT 21H ENDM **********************音乐地址宏 -win32 a small assembly language program playing a full song STACK SEGMENT DB 200 DUP ( STACK ) STACK ENDS CODE SEGMENT ASSUME DS:DATA,SS:STACK,CS:CODE START: MOV AX,DATA MOV DS,AX MOV aH, 0 MOV AL,00 INT 10H ********** waitf proc near push ax waitf1: in al,61h and al,10h cmp al,ah je waitf1 mov ah,al loop waitf1 pop ax ret waitf endp ********************************************* DISPLAY MACRO b LEA DX,b MOV AH,9 INT 21H ENDM **********************
Platform: | Size: 177152 | Author: xuwenjiao | Hits:

[Special Effects] otsu111

Description: Otsu算法步骤如下： 设图象包含L个灰度级(0,1…,L-1)，灰度值为i的的象素点数为Ni ，图象总的象素点数为N=N0+N1+...+N(L-1)。灰度值为i的点的概率为： P(i) = N(i)/N. 门限t将整幅图象分为暗区c1和亮区c2两类，则类间方差σ是t的函数： σ=a1*a2(u1-u2)^2 (2) 式中，aj 为类cj的面积与图象总面积之比，a1 = sum(P(i)) i->t, a2 = 1-a1 uj为类cj的均值，u1 = sum(i*P(i))/a1 0->t, u2 = sum(i*P(i))/a2, t+1->L-1 该法选择最佳门限t^ 使类间方差最大，即： 令Δu=u1-u2，σb = max{a1(t)*a2(t)Δu^2}-int otsu (IplImage*image, int rows, int cols, int x0, int y0, int dx, int dy, int vvv) { unsigned char*np // 图像指针 int thresholdValue=1 // 阈值 int ihist[256] // 图像直方图，256个点 int i, j, k // various counters int n, n1, n2, gmin, gmax double m1, m2, sum, csum, fmax, sb ·····
Platform: | Size: 1549312 | Author: 燕子一舞 | Hits:

[matlab] rossler2

Description: Rossler equation A. Wolf, J. B. Swift, H. L. Swinney and J. A. Vastano, "Determining Lyapunov Exponents from a Time Series," Physica D, Vol. 16, pp. 285-317, 1985.-Rossler equation dx =-y- z dy = x+ a*y dz = b+ z*(x-c)
Platform: | Size: 1024 | Author: Vincent | Hits:

[VHDL-FPGA-Verilog] register

Description: 采用Verlog编写的仿8086通用寄存器。包含了AX,BX,CX,DX,BP,SI,DI,SP八个通用寄存器，并且前四个可通过W-B选择为高八位或低八位-With Verlog written in imitation of 8086 general-purpose registers. Contains the AX, BX, CX, DX, BP, SI, DI, SP eight general purpose registers, and the first four by the WB for the high eight or low eight
Platform: | Size: 620544 | Author: Blueve | Hits:

[CSharp] ReportWebDemo

Description: 用DX控件实现打印的功能，和阅览的功能的查询和显示，在B/s结构下的网页打印。-Achieved with DX controls the printing function, and the function of reading the query and display, in B/s structure of web printing.
Platform: | Size: 9028608 | Author: 思 | Hits:

[Finance-Stock software system] 1-s2.0-S1755309115000039-main

Description: 论文：Information environment, market-wide sentiment and IPO initial returns: Evidence analyst forecasts before listing-Measuring the information environment of firms using analyst (price) forecast bias and forecast dispersion before listing, we empirically examine the interactive influence of the information environment and market-wide sentiment on the initial returns of initial public offerings (IPOs). We find the smaller the analyst forecast bias/dispersion, the lower the effect market-wide sentiment has on IPO initial returns. This finding indicates that information asymmetry is a basic reason for noise trading occurs and demonstrates the positive effect of financial analysts during IPOs. In addition, the effect of analyst forecasts is more pronounced during periods of rising markets and when IPO prices are not regulated.  2015 Sun Yat-sen University. Production and hosting by B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/ licenses/by-nc-nd/4.0/). http://dx.doi.org/10.1016/j.cjar.2015.01.002 1755-3091/ 2015 Sun Yat-sen University. Produ
Platform: | Size: 285696 | Author: | Hits:
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